メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.18100594326 34.2336908148917, 135.181713119611 34.2337431528924, 135.181664373364 34.2341369797611, 135.181508952267 34.2341257991671, 135.181263711605 34.2341071159207, 135.180801741742 34.2340768400031, 135.180807845725 34.2338662818726, 135.180889610519 34.2338735901981, 135.180887410523 34.2336798799808, 135.18100594326 34.2336908148917)) ^^http://www.opengis.net/ont/geosparql#wktLiteral